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Li Z, Zhou Z, Wu X, Zhou Q, Liao C, Liu Y, Li D, Shen L, Feng D, Yang L. LMP1 promotes nasopharyngeal carcinoma metastasis through NTRK2-mediated anoikis resistance. Am J Cancer Res 2020; 10:2083-2099. [PMID: 32775002 PMCID: PMC7407352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 06/18/2020] [Indexed: 06/11/2023] Open
Abstract
Anoikis resistance is an important mechanism that mediates tumor metastasis. Studies have found that Epstein-Barr virus (EBV)-encoded latent membrane protein 1 (LMP1) promotes the occurrence, development, and metastasis of nasopharyngeal carcinoma (NPC). However, the related mechanism, especially whether LMP1 is involved in NPC metastasis through anoikis resistance, has not yet been elucidated. In present study, we showed that LMP1 enhanced the ability of NPC cells to resist anoikis by upregulating neurotrophic tyrosine kinase receptor type 2 (NTRK2 or TrkB) expression through NF-κB signaling and promoted the migration and invasion of NPC cells. After knockdown of NTRK2, the p-ERK and p-AKT in NPC cells were inhibited, and twist expression was further reduced, resulting in upregulation of E-cadherin expression and downregulation of vimentin expression. Subsequently, the results of a xenograft experiment showed that inhibiting NTRK2 could reduce LMP1-mediated NPC metastasis in vivo. In summary, these findings demonstrated that EBV-LMP1 upregulates twist expression to promote epithelial-mesenchymal transition (EMT) through the NTRK2-mediated AKT/ERK signaling pathway, thus mediating anoikis resistance and promoting NPC metastasis. These data will provide new molecular markers and potential targets for NPC metastasis.
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Affiliation(s)
- Zhilan Li
- Department of Oncology, Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Xiangya Hospital, Central South UniversityChangsha, China
- Cancer Research Institute, School of Basic Medicine Science, Central South UniversityChangsha, China
- Department of Pathology, Xiangya Hospital, Central South UniversityChangsha, China
| | - Zhuan Zhou
- Department of Oncology, Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Xiangya Hospital, Central South UniversityChangsha, China
- Cancer Research Institute, School of Basic Medicine Science, Central South UniversityChangsha, China
| | - Xia Wu
- Department of Oncology, Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Xiangya Hospital, Central South UniversityChangsha, China
- Cancer Research Institute, School of Basic Medicine Science, Central South UniversityChangsha, China
| | - Qin Zhou
- Department of Oncology, Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Xiangya Hospital, Central South UniversityChangsha, China
| | - Chaoliang Liao
- Department of Oncology, Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Xiangya Hospital, Central South UniversityChangsha, China
- Cancer Research Institute, School of Basic Medicine Science, Central South UniversityChangsha, China
| | - Ying Liu
- Department of Oncology, Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Xiangya Hospital, Central South UniversityChangsha, China
- Cancer Research Institute, School of Basic Medicine Science, Central South UniversityChangsha, China
- Department of Pathology, Xiangya Hospital, Central South UniversityChangsha, China
| | - Dan Li
- Institue of Molecular Medicine and Oncology, College of Biology, Hunan UniversityChangsha, China
| | - Liangfang Shen
- Department of Oncology, Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Xiangya Hospital, Central South UniversityChangsha, China
| | - Deyun Feng
- Department of Pathology, Xiangya Hospital, Central South UniversityChangsha, China
| | - Lifang Yang
- Department of Oncology, Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Xiangya Hospital, Central South UniversityChangsha, China
- Cancer Research Institute, School of Basic Medicine Science, Central South UniversityChangsha, China
- Hunan Key Laboratory of Oncotarget Gene, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South UniversityChangsha, China
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Catechol inhibits epidermal growth factor-induced epithelial-to-mesenchymal transition and stem cell-like properties in hepatocellular carcinoma cells. Sci Rep 2020; 10:7620. [PMID: 32376896 PMCID: PMC7203133 DOI: 10.1038/s41598-020-64603-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 04/15/2020] [Indexed: 12/24/2022] Open
Abstract
Epithelial-mesenchymal transition (EMT) is a major cellular process in which epithelial cells lose cell polarity and cell-cell adhesion and become motility and invasiveness by transforming into mesenchymal cells. Catechol is one of the natural compounds present in fruits and vegetables and has various pharmacological and physiological activities including anti-carcinogenic effects. However, the effects of catechol on EMT has not been reported. Epidermal growth factor (EGF) is one of the growth factors and is known to play a role in inducing EMT. The present study showed that catechol suppressed not only the morphological changes to the mesenchymal phenotype of epithelial HCC cells, but also the reduction of E-cadherin and the increment of Vimentin, which are typical hallmark of EMT. In addition, catechol suppressed EMT-related steps such as migration, invasion, anoikis resistance acquisition, and stem cell-like characterization through the EGFR-AKT-ERK signaling pathway during liver cancer metastasis. Therefore, these results suggest that catechol may be able to regulate the early metastasis of liver cancer in vitro.
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